and most end up on dining tables in europe and china. >> california bans those exports. but some activists say that ban isn't working. in a kpix 5 exclusive, we go undercover at local horse auctions to find out where these horses go and how some are dedicating their lives to save them. it's a busy night at the auction. horses are on the block and they are going keep that. 50 to $100 even former racehorses like rhino u bought by a person who runs a shelter for horses. >> he was injured. he has a fractured knee. he was no longer useful to the industry so he was dumped. >> reporter: just months before the 2-year-old thoroughbred was racing at golden gate fields. >> quite typical for someone to spend $100,000 or a horse, race it a few times and if it's not performing just make it disappear. if they are lucky they make it to an actual person who wants to help them and retrain them but most times they go straight on to slaughter. >> reporter: the group horse plus has rescued over 2500 horses in the past decade. many of them racehorses that she finds dumped at auction. because